EP1206032A3 - Méthode de démodulation de signaux et dispositif de reproduction de données à partir d'un signal reçu - Google Patents

Méthode de démodulation de signaux et dispositif de reproduction de données à partir d'un signal reçu Download PDF

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Publication number
EP1206032A3
EP1206032A3 EP01125479A EP01125479A EP1206032A3 EP 1206032 A3 EP1206032 A3 EP 1206032A3 EP 01125479 A EP01125479 A EP 01125479A EP 01125479 A EP01125479 A EP 01125479A EP 1206032 A3 EP1206032 A3 EP 1206032A3
Authority
EP
European Patent Office
Prior art keywords
signal
processing
demodulation method
received signal
reproducing data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01125479A
Other languages
German (de)
English (en)
Other versions
EP1206032A2 (fr
Inventor
Yoshiro Hitachi Kokusai Electric Inc. Kokuryo
Kunihiko Hitachi Kokusai Electric Inc. Kondo
Hiroyuki Hitachi Kokusai Electric Inc. Ando
Nobuo Hitachi Kokusai Electric Inc. Hirose
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kokusai Denki Electric Inc
Original Assignee
Hitachi Kokusai Electric Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Kokusai Electric Inc filed Critical Hitachi Kokusai Electric Inc
Publication of EP1206032A2 publication Critical patent/EP1206032A2/fr
Publication of EP1206032A3 publication Critical patent/EP1206032A3/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/52—Transmission power control [TPC] using AGC [Automatic Gain Control] circuits or amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03114—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals
    • H04L25/03133—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals with a non-recursive structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3809—Amplitude regulation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/0342—QAM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03477—Tapped delay lines not time-recursive
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03592—Adaptation methods
    • H04L2025/03745—Timing of adaptation
    • H04L2025/03764—Timing of adaptation only during predefined intervals
    • H04L2025/0377—Timing of adaptation only during predefined intervals during the reception of training signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radio Transmission System (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
EP01125479A 2000-11-08 2001-11-06 Méthode de démodulation de signaux et dispositif de reproduction de données à partir d'un signal reçu Withdrawn EP1206032A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000340717A JP3594297B2 (ja) 2000-11-08 2000-11-08 データ再生方式およびデータ再生器
JP2000340717 2000-11-08

Publications (2)

Publication Number Publication Date
EP1206032A2 EP1206032A2 (fr) 2002-05-15
EP1206032A3 true EP1206032A3 (fr) 2004-06-30

Family

ID=18815582

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01125479A Withdrawn EP1206032A3 (fr) 2000-11-08 2001-11-06 Méthode de démodulation de signaux et dispositif de reproduction de données à partir d'un signal reçu

Country Status (3)

Country Link
US (1) US7039123B2 (fr)
EP (1) EP1206032A3 (fr)
JP (1) JP3594297B2 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6879630B2 (en) * 2000-03-30 2005-04-12 Hitachi Kokusai Electric Inc. Automatic equalization circuit and receiver circuit using the same
JP4558225B2 (ja) * 2001-02-15 2010-10-06 株式会社日立国際電気 符号分割多重アクセス受信機
US7324611B2 (en) * 2003-03-18 2008-01-29 The Boeing Company Symbol decision adjustment in demodulator
KR100665137B1 (ko) * 2004-12-02 2007-01-04 한국전자통신연구원 무선 패킷 통신 시스템의 자동 이득 제어 장치 및 제어방법
US20070259619A1 (en) * 2006-03-20 2007-11-08 Harris Corporation Method And Apparatus For Single Input, Multiple Output Selection Diversity Aiding Signal Tracking
US8111243B2 (en) 2006-03-30 2012-02-07 Cypress Semiconductor Corporation Apparatus and method for recognizing a tap gesture on a touch sensing device
US8588126B2 (en) 2006-11-08 2013-11-19 Trellisware Technologies, Inc. Methods and apparatus for network communication via barrage relay onto an independent medium allocation
US8457005B2 (en) 2006-11-08 2013-06-04 Trellisware Technologies, Inc. Method and system for establishing cooperative routing in wireless networks
JP2007195151A (ja) * 2006-11-27 2007-08-02 Kyocera Corp ダイバーシティ装置および送信ダイバーシティ制御方法
US8576946B2 (en) 2007-10-19 2013-11-05 Trellisware Technologies, Inc. Method and system for cooperative communications with minimal coordination
JP5679431B2 (ja) * 2011-01-27 2015-03-04 株式会社日立国際電気 受信装置
JP5723240B2 (ja) * 2011-08-01 2015-05-27 株式会社日立国際電気 無線通信システム
JP5906961B2 (ja) * 2012-06-27 2016-04-20 ソニー株式会社 受信装置および方法、並びにプログラム
US12212516B2 (en) * 2021-08-05 2025-01-28 Qualcomm Incorporated Reduced activation time for transmission configuration indicator state

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574246A (en) * 1983-03-16 1986-03-04 Nec Corporation Demodulator with AGC circuit for multi-level quadrature amplitude-modulated carrier wave
EP0486474A2 (fr) * 1985-06-29 1992-05-20 Nec Corporation Procédé d'adaptation d'un égaliseur transversal, sans synchronisation de la porteuse
US5283780A (en) * 1990-10-18 1994-02-01 Stanford Telecommunications, Inc. Digital audio broadcasting system
US6121828A (en) * 1998-05-19 2000-09-19 Nec Corporation Demodulator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695969A (en) * 1984-12-17 1987-09-22 American Telephone And Telegraph Company At&T Bell Laboratories Equalizer with improved performance
DE69227752T2 (de) * 1991-06-20 1999-07-22 Motorola, Inc., Schaumburg, Ill. Einrichtung zur einstellung von signalpunkten, entzerrerverstärkungen und dergleichen
JP2861778B2 (ja) 1993-12-15 1999-02-24 日本電気株式会社 復調装置
JP3237827B2 (ja) * 1998-04-22 2001-12-10 日本電気株式会社 無線データ通信端末
US6389070B1 (en) * 1999-03-31 2002-05-14 Philips Electronics North America Corporation Device for indicating the received signal quality in a digital television receiver

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574246A (en) * 1983-03-16 1986-03-04 Nec Corporation Demodulator with AGC circuit for multi-level quadrature amplitude-modulated carrier wave
EP0486474A2 (fr) * 1985-06-29 1992-05-20 Nec Corporation Procédé d'adaptation d'un égaliseur transversal, sans synchronisation de la porteuse
US5283780A (en) * 1990-10-18 1994-02-01 Stanford Telecommunications, Inc. Digital audio broadcasting system
US6121828A (en) * 1998-05-19 2000-09-19 Nec Corporation Demodulator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 10 30 November 1995 (1995-11-30) *

Also Published As

Publication number Publication date
JP2002152092A (ja) 2002-05-24
US20020054649A1 (en) 2002-05-09
EP1206032A2 (fr) 2002-05-15
US7039123B2 (en) 2006-05-02
JP3594297B2 (ja) 2004-11-24

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